Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Status file path should not be required in configuration #28

Merged
merged 1 commit into from
Sep 22, 2016

Conversation

merlimat
Copy link
Contributor

Motivation

Status file for external health-check monitoring should not be required in configuration.

Modifications

Remove the requirement for the field to be set in broker.conf

@yahoocla
Copy link

CLA is valid!

@merlimat merlimat added this to the 1.15 milestone Sep 20, 2016
@merlimat merlimat merged commit afc771b into apache:master Sep 22, 2016
sijie added a commit to sijie/pulsar that referenced this pull request Mar 4, 2018
massakam pushed a commit to massakam/pulsar that referenced this pull request Aug 6, 2020
Upgrade js-yaml to fix security vulnerability
hangc0276 pushed a commit to hangc0276/pulsar that referenced this pull request May 26, 2021
* Complete implememtation of group coordinator

* Complete the implementation of GroupCoordinator
aloyszhang pushed a commit to aloyszhang/pulsar that referenced this pull request Aug 5, 2022
codelipenghui added a commit to codelipenghui/incubator-pulsar that referenced this pull request Sep 30, 2022
### Motivation

[fix][broker] Fix the broker shutdown issue after the Zookeeper node crashed

### Motivation

The broker was shutdown unexpectedly after the Zookeeper node crashed. I have a test to kill the zookeeper node periodically, sometimes the following logs will appear

```
Sep 30 12:21:33 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:33,214+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 22.245 seconds
Sep 30 12:21:35 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:35,214+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 20.245 seconds
Sep 30 12:21:37 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:37,214+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 18.244 seconds
Sep 30 12:21:37 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:37,523+0000 [pulsar-web-36-43] INFO  org.eclipse.jetty.server.RequestLog - 10.0.0.54 - - [30/Sep/2022:12:21:37 +0000] "GET /metrics HTTP/1.1" 302 0 "-" "Prometheus/2.31.1" 0
Sep 30 12:21:37 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:37,526+0000 [prometheus-stats-37-1] INFO  org.eclipse.jetty.server.RequestLog - 10.0.0.54 - - [30/Sep/2022:12:21:37 +0000] "GET /metrics/ HTTP/1.1" 200 21383 "http://10.0.0.160:8080/metrics" "Prometheus/2.31.1" 2
Sep 30 12:21:39 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:39,214+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 16.244 seconds
Sep 30 12:21:41 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:41,214+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 14.244 seconds
Sep 30 12:21:43 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:43,215+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 12.244 seconds
Sep 30 12:21:45 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:45,215+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 10.243 seconds
Sep 30 12:21:47 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:47,215+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 8.243 seconds
Sep 30 12:21:47 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:47,523+0000 [pulsar-web-36-43] INFO  org.eclipse.jetty.server.RequestLog - 10.0.0.54 - - [30/Sep/2022:12:21:47 +0000] "GET /metrics HTTP/1.1" 302 0 "-" "Prometheus/2.31.1" 0
Sep 30 12:21:47 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:47,526+0000 [prometheus-stats-37-1] INFO  org.eclipse.jetty.server.RequestLog - 10.0.0.54 - - [30/Sep/2022:12:21:47 +0000] "GET /metrics/ HTTP/1.1" 200 21383 "http://10.0.0.160:8080/metrics" "Prometheus/2.31.1" 2
Sep 30 12:21:49 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:49,215+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 6.243 seconds
Sep 30 12:21:51 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:51,216+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 4.243 seconds
Sep 30 12:21:53 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:53,216+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 2.243 seconds
Sep 30 12:21:55 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:55,216+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper client is disconnected. Waiting to reconnect, time remaining = 0.242 seconds
Sep 30 12:21:57 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:57,216+0000 [metadata-store-zk-session-watcher-7-1] ERROR org.apache.pulsar.metadata.impl.ZKSessionWatcher - ZooKeeper session reconnection timeout. Notifying session is lost.
Sep 30 12:21:57 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:57,216+0000 [metadata-store-zk-session-watcher-7-1] INFO  org.apache.pulsar.broker.PulsarService - Received metadata service session event: SessionLost
Sep 30 12:21:57 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:57,216+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.broker.PulsarService - The session with metadata service was lost. Shutting down.
Sep 30 12:21:57 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:57,216+0000 [metadata-store-zk-session-watcher-7-1] INFO  org.apache.pulsar.broker.PulsarService - Invoking Pulsar service immediate shutdown
Sep 30 12:21:57 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:57,323+0000 [metadata-store-zk-session-watcher-7-1] INFO  org.apache.zookeeper.ZooKeeper - Session: 0xcc55e0015 closed
Sep 30 12:21:57 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:57,324+0000 [metadata-store-zk-session-watcher-7-1] WARN  org.apache.pulsar.broker.PulsarService - Failed to close metadata service session: null
Sep 30 12:21:57 ip-10-0-0-160.us-west-2.compute.internal pulsar[21529]: 2022-09-30T12:21:57,324+0000 [metadata-store-zk-session-watcher-7-1] INFO  org.apache.pulsar.PulsarBrokerStarter - Halting broker process with code -1
```

Then I try to make the thread dump when the broker performing the `Waiting to reconnect`

```
```
"main-EventThread" apache#27 daemon prio=5 os_prio=0 cpu=126.35ms elapsed=1369.57s tid=0x00007f453d65d1a0 nid=0x1c3df waiting for monitor entry  [0x00007f429da8a000]
   java.lang.Thread.State: BLOCKED (on object monitor)
    at org.apache.pulsar.metadata.impl.ZKSessionWatcher.process(ZKSessionWatcher.java:123)
    - waiting to lock <0x0000100007c41a30> (a org.apache.pulsar.metadata.impl.ZKSessionWatcher)
    at org.apache.pulsar.metadata.impl.ZKMetadataStore.lambda$null$0(ZKMetadataStore.java:78)
    at org.apache.pulsar.metadata.impl.ZKMetadataStore$$Lambda$546/0x000000080111e888.accept(Unknown Source)
    at java.util.Optional.ifPresent(java.base@17.0.4.1/Optional.java:178)
    at org.apache.pulsar.metadata.impl.ZKMetadataStore.lambda$new$1(ZKMetadataStore.java:78)
    at org.apache.pulsar.metadata.impl.ZKMetadataStore$$Lambda$124/0x0000000800e29478.process(Unknown Source)
    at org.apache.bookkeeper.zookeeper.ZooKeeperWatcherBase.notifyEvent(ZooKeeperWatcherBase.java:180)
    at org.apache.bookkeeper.zookeeper.ZooKeeperWatcherBase.process(ZooKeeperWatcherBase.java:146)
    at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:588)
    at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:563)

   Locked ownable synchronizers:
    - None

"metadata-store-zk-session-watcher-7-1" apache#28 prio=5 os_prio=0 cpu=36.92ms elapsed=1369.54s tid=0x00007f453d665b60 nid=0x1c3e0 waiting on condition  [0x00007f429d786000]
   java.lang.Thread.State: TIMED_WAITING (parking)
    at jdk.internal.misc.Unsafe.park(java.base@17.0.4.1/Native Method)
    - parking to wait for  <0x0000100029e10418> (a java.util.concurrent.CompletableFuture$Signaller)
    at java.util.concurrent.locks.LockSupport.parkNanos(java.base@17.0.4.1/LockSupport.java:252)
    at java.util.concurrent.CompletableFuture$Signaller.block(java.base@17.0.4.1/CompletableFuture.java:1866)
    at java.util.concurrent.ForkJoinPool.unmanagedBlock(java.base@17.0.4.1/ForkJoinPool.java:3463)
    at java.util.concurrent.ForkJoinPool.managedBlock(java.base@17.0.4.1/ForkJoinPool.java:3434)
    at java.util.concurrent.CompletableFuture.timedGet(java.base@17.0.4.1/CompletableFuture.java:1939)
    at java.util.concurrent.CompletableFuture.get(java.base@17.0.4.1/CompletableFuture.java:2095)
    at org.apache.pulsar.metadata.impl.ZKSessionWatcher.checkConnectionStatus(ZKSessionWatcher.java:107)
    - locked <0x0000100007c41a30> (a org.apache.pulsar.metadata.impl.ZKSessionWatcher)
    at org.apache.pulsar.metadata.impl.ZKSessionWatcher$$Lambda$129/0x0000000800e36598.run(Unknown Source)
    at org.apache.pulsar.common.util.Runnables$CatchingAndLoggingRunnable.run(Runnables.java:53)
    at java.util.concurrent.Executors$RunnableAdapter.call(java.base@17.0.4.1/Executors.java:539)
    at java.util.concurrent.FutureTask.runAndReset(java.base@17.0.4.1/FutureTask.java:305)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(java.base@17.0.4.1/ScheduledThreadPoolExecutor.java:305)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@17.0.4.1/ThreadPoolExecutor.java:1136)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@17.0.4.1/ThreadPoolExecutor.java:635)
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    at java.lang.Thread.run(java.base@17.0.4.1/Unknown Source)
```

It's a deadlock issue happened on the broker side.

### Modification

As apache#17638, process the session event in separated thread to avoid the deadlock

### Verification

The test continues running 6 hours, I don't see the issue happens again. Without this fix, the problem will happen in 10 min during the
test.
dragonls pushed a commit to dragonls/pulsar that referenced this pull request Oct 21, 2022
Signed-off-by: druidliu <druidliu@tencent.com>
dragonls pushed a commit to dragonls/pulsar that referenced this pull request Oct 21, 2022
tisonkun pushed a commit to tisonkun/pulsar that referenced this pull request Jul 12, 2023
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

3 participants